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Add EFI write support to loader

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This commit is contained in:
Peter Wemm 2002-03-19 23:05:33 +00:00
parent 3003bdb598
commit efcbdfb72b
1 changed files with 30 additions and 2 deletions
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32
sys/boot/efi/libefi/efifs.c
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@ -129,7 +129,35 @@ efifs_read(struct open_file *f, void *buf, size_t size, size_t *resid)
size -= sz;
bufp += sz;
}
*resid = size;
if (resid)
*resid = size;
return 0;
}
static int
efifs_write(struct open_file *f, void *buf, size_t size, size_t *resid)
{
EFI_FILE *file = f->f_fsdata;
EFI_STATUS status;
UINTN sz = size;
char *bufp;
bufp = buf;
while (size > 0) {
sz = size;
if (sz > 8192)
sz = 8192;
status = file->Write(file, &sz, bufp);
twiddle();
if (EFI_ERROR(status))
return EIO;
if (sz == 0)
break;
size -= sz;
bufp += sz;
}
if (resid)
*resid = size;
return 0;
}
@ -246,7 +274,7 @@ struct fs_ops efi_fsops = {
efifs_open,
efifs_close,
efifs_read,
null_write,
efifs_write,
efifs_seek,
efifs_stat,
efifs_readdir